<template>
  <div>
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="16">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <el-table :data="users" border>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column
          label="姓名"
          prop="username"
          width="120px"
        ></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改用户按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除用户按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUser(scope.row.id)"
            ></el-button>
            <!-- 分配权限按钮 -->
            <el-button
              type="warning"
              icon="el-icon-setting"
              size="mini"
              @click="setRole(scope.row)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的表 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClose"
    >
      <!-- 内容主题 -->
      <el-form
        ref="addFormRef"
        label-width="80px"
        :rules="addFormRules"
        :model="addForm"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改显示对话框 -->
    <el-dialog
      title="修改"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClose"
    >
      <el-form
        ref="editFormRef"
        label-width="80px"
        :rules="addFormRules"
        :model="editForm"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="selectRoleId = ''"
    >
      <p>用户名： {{ userInfo.username }}</p>
      <br />
      <p>当前角色： {{ userInfo.role_name }}</p>
      <br />
      <p>
        分配新角色：

        <el-select v-model="selectRoleId" placeholder="请选择">
          <el-option
            v-for="item in roleList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </p>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'Users',
  data () {
    // 验证手机号规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|166|17[3678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号！'))
    }

    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '', // 查询关键字
        pagenum: 1, // 当前页，默认显示第一页
        pagesize: 2 // 每页数据条数 数据不多
      },
      users: [], // 当前页数据
      total: 0, // 数据总条数
      value: '',
      addDialogVisible: false,
      editDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { type: 'email', message: '请输入正确的邮箱地址', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      editForm: {},
      setRoleDialogVisible: false,
      userInfo: {},
      roleList: [],
      selectRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取数据失败')
      this.users = res.data.users
      this.total = res.data.total
      this.value = res.data.value
      // console.log(this.users)
      // console.log(this.total)
    },
    handleSizeChange (val) {
      // console.log(`每页 ${val} 条`)
      this.queryInfo.pagesize = val
      this.getUserList()
    },
    handleCurrentChange (val) {
      // console.log(`当前页: ${val}`)
      this.queryInfo.pagenum = val
      this.getUserList()
    },
    // 状态开关change事件
    async userStateChanged (row) {
      const { data: res } = await this.$http.put(`users/${row.id}/state/${row.mg_state}`)
      if (res.meta.status !== 200) return this.$message.error('更新数据失败')
      this.$message.success('更新数据成功')
    },
    addDialogClose () {
      this.$refs.addFormRef.resetFields()
    },
    // 添加用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 点击修改弹出对话框自动填充用户数据
    async showEditDialog (id) {
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) return this.$message.error('获取用户信息失败')
      // console.log(res.data)
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改用户
    editUser () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`, this.editForm)
        if (res.meta.status !== 200) return this.$message.error('修改失败')
        this.$message.success('修改成功')
        this.editDialogVisible = false
        this.getUserList()
      })
    },
    editDialogClose () {
      this.$refs.editFormRef.resetFields()// 点击退出初始化对话框
    },
    // 删除用户
    async removeUser (id) {
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const { data: res } = await this.$http.delete(`users/${id}`)
        if (res.meta.status !== 200) return this.$message.error('删除失败')
        this.$message.success('删除成功')
        this.getUserList()
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    // 分配角色按钮事件
    async setRole (row) {
      // console.log(row)
      this.userInfo = row
      this.setRoleDialogVisible = true
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取数据失败！')
      this.roleList = res.data
      // console.log(this.roleList)
    },
    // 点击确定分配角色事件
    async saveRoleInfo () {
      if (!this.selectRoleId) return this.$message.error('请选择要分配的角色！')
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      if (res.meta.status !== 200) return this.$message.error('更新角色失败！')
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    }
  }
}
</script>

<style scoped lang="less">
</style>
